19.4 A simulation. To simulate the toss of a fair coin (the probability of heads and tails are both 0.5) using a table of random digits,
(a) assign the digits 0, 1, 2, 3, and 4 to represent heads and the digits 5, 6, 7, 8, 9 to represent tails.
(b) assign the digits 0, 2, 4, 6, and 8 to represent heads and the digits 1, 3, 5, 7, and 9 to represent tails.
(c) assign the digits 0, 1, 5, 8, and 9 to represent heads and the digits 2, 3, 4, 6, and 7 to represent tails.
(d) use any of the above. All are correct.